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https://issues.apache.org/jira/browse/NUTCH-479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494582
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Andrzej Bialecki commented on NUTCH-479:
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Correct - the only syntax element added in this patch is an OR clause. Nested
queries like that are probably not high on the priority list, because they may
be expensive to run, and they would also complicate the implementation of
QueryFilter plugins. Anyway, improvements are welcome ;)
> Support for OR queries
> ----------------------
>
> Key: NUTCH-479
> URL: https://issues.apache.org/jira/browse/NUTCH-479
> Project: Nutch
> Issue Type: Improvement
> Components: searcher
> Affects Versions: 1.0.0
> Reporter: Andrzej Bialecki
> Assigned To: Andrzej Bialecki
> Fix For: 1.0.0
>
> Attachments: or.patch
>
>
> There have been many requests from users to extend Nutch query syntax to add
> support for OR queries, in addition to the implicit AND and NOT queries
> supported now.
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